Bog Standard Isekai - Chapter 49Book 3.

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

A bittersweet drama: As long as the heroine forgives her kindly and kindly, pays without regrets, and gives up again and again until the bad guys who bully her are old and unable to act, she will get a happy ending.

When Mercury is dressed as the heroine of each bitterness drama…forbearance? Pooh.

Terrible heroine, change her life online.

Content tags: Time travel, face slap, fast wear, cool text
Search keywords: protagonist: mercury ┃ supporting role: many ┃ others: fast wear, cool text

- Description from novelbuddy

What is a genius? Capable of comprehending any battle skill regardless of the skill itself and sweeping away the bottlenecks while cultivating a new technique; this is a true genius! He Yiming was originally an ordinary youngster in the He family’s estate with not too extraordinary aptitude in learning martial arts.

Despite gifted with extraordinary talent, I resented my life being cut short.One day, fueled by alcohol, I penned a proposal letter to a princess, hoping to alter my fate.[Sure. I’d love to marry you.]…What? She’s accepting?The problem is, I proposed to all five tyrant princesses.And to make matters worse, I have no clue which one responded.